E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/06 (2006.01) E21B 10/26 (2006.01) E21B 10/62 (2006.01)
Patent
CA 2710204
A directional drilling system comprises a main drill bit 24 rotatable about a main bit axis 26, a pilot drill bit 34 rotatable about a pilot bit axis 36 substantially parallel to the main bit axis 26, and adjustment means 28 for adjusting the position of the pilot bit axis 36 relative to the main bit axis 26.
La présente invention concerne un système de forage directionnel comportant un trépan principal (24) apte à être entraîné en rotation autour d'un axe de trépan principal (26), un trépan pilote (34) apte à être entraîné autour d'un axe de trépan pilote (36) sensiblement parallèle à l'axe de trépan principal (26), et un moyen d'ajustement pour ajuster la position de l'axe de trépan pilote (36) par rapport à l'axe de trépan principal (26.
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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